Q. My puppy is 7 wks old and is covered in fleas. I don't know what is safe to use on her. She is a Chihuahua and couldn't weigh over 2lbs.
DR. CHRISTIE LONG, D.V.M., C.V.A.
A. Consult with your vet about getting a dose of the oral medication Capstar. It's only available by prescription, but it's fantastic for removing adult fleas immediately - as fast as 15 minutes after ingestion. They just jump off - it's quite remarkable. It can be used in puppies as young as 4 weeks as long as they're 2 pounds or more.
You'll still need a topical product to treat for the eggs that are left behind, however most of those are not labeled for use in puppies under 8 weeks of age. Talk to your vet about other possibilities, such as bathing or using a flea comb to remove eggs.